2018
DOI: 10.1590/1807-1929/agriambi.v22n7p482-487
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Economically optimal water depth and grain yield of common bean subjected to different irrigation depths

Abstract: Palavras-chave:Phaseolus vulgaris L. manejo de água componentes de produtividade A B S T R A C TCommon bean crop plays an important role in the world, not only in economic aspects but also in social development. The objective of this study was to evaluate the grain yield and the economically optimal water depth which reflects the maximum technical efficiency of the common bean crop. The experiment was conducted in greenhouse, in Alegrete -RS, from February to May 2016. A completely randomized design was used, … Show more

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Cited by 9 publications
(10 citation statements)
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“…Moreover, reduced tillage demands a drastic decrease in the use and size of farm machinery and fuel, with consequent reduction in Greenhouse Gas (GHG) Emissions and management costs [6]. Irrigation management, especially during flowering or reproduction, is also crucial for crop productivity and quality in most parts of the world [7][8][9][10]. Introduction of high yielding cultivars with superior product qualities and increased tolerance to biotic and abiotic stresses, as well as application or/and encouragement of beneficial microorganisms (e.g., bacteria, algae, fungi) with the potential to increase nutrient and water uptake without compromising environment functions should also be considered as viable sustainable agronomic practices to improve plant performance and productivity [11,12].…”
Section: Introductionmentioning
confidence: 99%
“…Moreover, reduced tillage demands a drastic decrease in the use and size of farm machinery and fuel, with consequent reduction in Greenhouse Gas (GHG) Emissions and management costs [6]. Irrigation management, especially during flowering or reproduction, is also crucial for crop productivity and quality in most parts of the world [7][8][9][10]. Introduction of high yielding cultivars with superior product qualities and increased tolerance to biotic and abiotic stresses, as well as application or/and encouragement of beneficial microorganisms (e.g., bacteria, algae, fungi) with the potential to increase nutrient and water uptake without compromising environment functions should also be considered as viable sustainable agronomic practices to improve plant performance and productivity [11,12].…”
Section: Introductionmentioning
confidence: 99%
“…da Conceição et al [13] attempted to determine an economically optimum irrigation depth using a polynomial production function based on regression analysis between yield and irrigation depth. They targeted to obtain irrigation depth at gross income rather than net income.…”
Section: Introductionmentioning
confidence: 99%
“…Pois, além do déficit hídrico, já mencionado, também houve excesso de chuva na maturação fisiológica (R9), o que prejudicou a maturação, colheita e secagem das vagens, afetando de forma generalizada o rendimento de grãos da cultura. Conceição et al (2018) contrastam que o excesso de água na maturação acarreta em intensa degradação enzimática e consequente redução na massa de grãos. Por uma outra perspectiva, nota-se que doses elevadas de nitrogênio acarreta no rápido fechamento das entre linhas e subsequente queda na taxa fotossintética, ocasionada pela redução na incidência de luz sobre o dossel das plantas.…”
Section: Methodsunclassified